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Principal Mechanical Engineer

Job Description

Principal Mechanical Design Engineer

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£60,000 - £70,000 per annum DOE + Travel + Car Allowance

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London

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Due to several recent major project wins and in line with an ambitious growth plan, we are looking for a Principal Mechanical Design Engineer to join the London office of a tier one Mechanical and Electrical Sub-Contractor.

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The Company

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  • Tier one Sub-Contractor, specialising in Data Centres, Commercial and Fit-Out projects.
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  • Established Design team, split between mechanical and electrical, with a wealth of experience.
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  • Central London office close to major transport links.
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Key Responsibilities

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  • The Principal Mechanical Engineer will take a lead role on the successful delivery of innovative mechanical/ HVAC design on critical infrastructure projects in the UK and Europe.
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  • The Principal Mechanical Engineer will be responsible for attending design team and client meetings and working with the wider multi-disciplinary engineering design team.
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  • The Principal Mechanical Design Engineer will take responsibility for training and mentoring less experienced Engineers in the team.
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Skills and Background

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  • Background in commercial or life science projects, with new build and fit out experience required.
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  • Competence on IES, Revit and Bluebeam.
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  • Educated to Degree level or equivalent in either mechanical engineering or building services engineering.
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If you are a Principal Mechanical Design Engineer and are looking for an opportunity with a leading Sub-Contractor and exposure to the Data Centre market, then this is the opportunity for you.

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Principal Mechanical Engineer

London, UK
Full time

Published on 09/20/2026

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